Automatic reversing mechanism



E. E. BERTHOLD.

AUTOMATIC REVERSING MECHANISM.

APPLICATION FILED AUG-211 1919.

1,366,690, Patented Jan. 25,1921.

3 SHEETSSHEET l- E. E. BERTHOLD.

AUTOMATIC REVERSING MECHANISM.

APPLSQATION FILED AUG.2I, 1919.

Patented Jan. 25, 1921.

3 SHEETS-SHEET 2.

23/206121! E Eerifiaicl A w Q Q Z 52 m WM idiifi j se E. E. BEBTHOLD AUTOMAHC REVERSING MECHANISM.

APPLICATION FILED Aus.21, 1919.

1,366,690. Patented Jan. 25, 1921.

3 shins-slant 3.

7ZW67ZW ZZwardZLBczrffiald W gmmw movement thereon.

, versing Mechanism.

UNITED STATES P T crime. I

EDWARD E. BnItirH'oLn, or CHICAGO, ILLINOIS.

AUTOMATIC anvnnsnve MEOHANISM..

1/ 'o-aZZ whom it may concern.

Be it known that I, EDWARD E. BnnTHoLD,

a citizen of the United States, residing in the city of Chicago, county of Cookfand State of Illinois, have inve-ntedce1tai11 new and useful Improvements in Automaticlte of which the following is a specification. I

The invention relates to reversing mecha nism for Washing or other machines which are actuated by motive power, and ithas for its object the provision of reversingmechanism which is automatic in operation, which will positively reverse the direction of movement of the driven element at the proper time, and which is of advantageous con struction by reason: of its simplicity compactness and paucity of parts.

The object of the invention thus generally stated together with other and ancillary advantages are obtainedby the construction and arrangement illustrated in the accompanying drawings forming part hereof and in which, Figure l is a fragmentary front elevation of a preferred form of my improved reversing mechanism applicable to a washing machine. Fig. 2 is a vertical sectional view takencn line 2-2 of Fig. 1. Fig; 3 is a fragmentary detail view of one of the parts of the reversing mechanism. Fig. 4: is a horizontal section taken on line 4-4 of Fig. 2. Fig: 5 is a similar View taken on line 5-5 of Fig. 2. V

In the embodiment of the inventionillustrated, l designates a housing formedupon a supporting bracket 2 and adapted to be closed byla cover plated WVithin said l1ousing the reversing mechanism'is adapted to be'inclosed and comprisesa drive shaft 4 extend ng horizontally through the lower portion-of the housing and a driven shaft 5 which may form one of the journals of a washing machine drum (not-shown).- Suitablebearings 6 are provided inthe opposite sidesof'the housing 1 for the drive shaft a, and a bearing 7 is provided in the rear wall ofthe housing for the driven shaft 5.

Theshaft 5 extends into the housing and has fixed thereon abevel gear 8 which meshes'at all times at diametrically opposite points with two bevel pinions 9 and 9 170- tatably mounted within the housing on the drive shaft 4 but fixed against longitudinal Said pinions are ar- Spe cifi cation of Letters Patent.

ranged to be alternately driven from the Patented Jan. 25, 1921. Application filed. August 21, 1919. Serial No. 318,904.

drive shaft 4 through a shiftable clutch element or sleeve 10 splined upon the shaft 4' by means of a key 11. The clutch sleeve 10 is provided on its opposite ends with clutch faces 12 and 12 arranged to engage respectively, when the clutch sleeve 10 is,

properly shifted, withclutch faces '13 and 13 formed on the hubs of the bevel pinions 9 and 9. 1 p

The means for shifting the clutch sleeve 10 toalternately connect the pinions 9 and 9, whereby to alternately rotate the bevel gear 8 in opposite directions, comprises a lever 14 pivoted at .14 to the housing 1 upon an upstanding rib 15 (Fig! 2). Said lever is connected a short distance above the lower end with the clutch sleeve 10 in any suitable manner, as by means of an annular groove 10 in the sleeve, in" which the lever *is adapted to ride; and near itsupper e'ndt'he lever is connected to a rotary element such as a spur gear 16, which is mounted ona' stud the periphery of the spur gear and the outer end of which is fixed to a stud 20 projecting forwardly from the upper end of the lever 14p Said spring is [constantly under tensioinand it will be seen that as theidir'ection of pull thereof changes in the rotation of said gear, the lever is swung by the action of the spring 18" to shiftthe clutclr element 10 from en agement withone of the pinions 9 or 9 into operative engagemenet with the other oneof saidpinionsl I For the purpose of controlling the move ments of the lever 14 bv thespring 18, so that'a reversal in the direction of movei'nent of the parts may be prevented untilfthe proper time, or until such timethat the Said gearlG meshes springmay exert a positive pull inthe' direct 7 "of rollersf23 and 24 (Figs, 3

and l) Said projections are spaced apart a substantial will be understood, the gearing connections "are-relativelyproportioned so that the spur gear movesfronr one-position tothe other, the driven shaft passes througha pre determmed number of revolutions.

: Inoperation, theidrive shaft hand thereby the Clutch element 10 is constantly driven in one direction. In 1, theclutch ele-* 'ment is shown as operativel y the pinionQfland in this position of the parts i q the gear 16; through the bevel gear 8, shaft 5 and pinion'17, is'd'riven in a counterclocka wise direction.- Liheshattt continues to op}, erate ln 1ts.,1n1t1al"direction untilthegear 16 movesthrough substantially a halt revolution from the position shown in Fig. 1 In this operation, thecamprojectionQQ passes; between the rollers 23 and -24, with the roller 23 bearing upon the cam face 27 so thait movement of the lever 14 is prevented. At

thesame time,the stud 19, to which the outer en'diofthe spring- 18 is connected, moves to a substantially diametrically opposite position, tensioning the spring and changingthe direction of its pull; and as soon as the camprojection-22 releases thegroller 23 on the lever and the groove 25 becomes alined with both rollers, the lever "14 is quickly and positively swung to its opposite position. 7 y

T This movement ot the lever carries the clutch element 10 out otengagementwith the pinion 9 and; into operative association with the pinion 9. The direction of rotation of the driven shaft 5 is thus immediately reversed, and'the spur gear is accordingly ro-.

. tated in the opposite direction with the cam projectionQl passing between the rollers 23 andflrt andthe projection 21 acting to prevent a premature shiftingot the lever 14:.

- It willi begseen that Ihave provided a reversing .mechanism of substantial simplicity having a minimum number of parts cooperating to effect positive reversals-in the direction of rotation o f the driven. member at regular intervals. The actuatingspring is prevented from acting until it has been placed under maximum tension, and further until it'is in such position as toexert a 'pu'll.

in the direct line of movement of the lever; thus ln'suring 1 a prompt reversal ot the a j mechanism. r i

While I have tion with considerable particular'ty, it will beamderstood that in the interpretation of;

The rollersQB and I herein described the inventhe appended claims, it is not'to be'limited except as may be necessitated by the'state of the 13110lffl1ft.

I claim as my invention:

1. An' automatic "reversing mechanism comprising, in combination with a driven.

element, reversing clutch, means for actuating said clutch comprising a pivoted lever, a "rotary element in contlnual driving connection with the driven element, and a coiled t-ension'spring havlng its ends directly at tached to. said lever and said rotary element;

respectively whereby in the'rotation ot said the, direction or pull of ,the spring is i 1 use element (-hangedr 2. An automatic reversing; mechanism comprising, in, combination with a driven, element, a reversing clutch, means tor actu-, ating said clutch comprising a pivoted lever,:'

a rotaryelement, having/a continually oper ating gearing connection 'witlithedriven ele much; a s urin directl connectin said lever and rotaryelement. 5 andmeans operatively engaging said lever in the rotation 'otth'e ment of the lever by said spring. ,Q

rotary element to'prevent a premature move 3. -An automatic reversing 'me'chanism OOIILPPlSlIlg, in COIIlbll'littlOILyWl'tll an, ele-, ment to be dr1ven,a reversing clutch, agear element operatively zconnected with said driven element, a spring-directly attached" at one'endrto vthe gear! elementi and at lts other end operatively connected :with the clutch and means'for controlling the movement of said clutch. by said spring; V a: A

to be driven and a 'reversingclntch; a; rotary element continually 5 driven by; said" driven element, a pivoted lever'operatively connected with said-clutch,-a spring for swinging said lever having one end connected thereto and the other end directly connected with said rotary element, and controlling means forpreventing a premature movement of "saidleverby said spring in the rotation of the rotary element, said controlling means comprising 'coacting elements 7 on i the lever and theirotary element. r

5. An automatic reversing comprising, in combination withian element to be driven, a reversingclutch, a lever con nected withisaid clutch to move it, a rotary element continually driven by said driven element, a spring directly connecting said lever with-said rotary element and adapted to be tensionediin the. rotation of said element to swing the lever, and means adapted to operativelyengage with.the lever to control the movements thereof;

6. An; automatic reversing mechanism comprising, in combination with an element to be driven, a clutch, a lever for movingithe clutch, and :means for swinging the lever colnprlsinga spring, means for tensioning mechanism v a A. An automatic reversing 'mechanismcomprislng, 111 combmation w1th-an element the spring and changing the direction of pull thereof including a rotatable element geared directly to the driven element, and means for controlling the movement of said lever comprising a pair of cam devices on said rotatable element operatively engaging With said lever.

7 An automatic reversing mechanism comprising, in combination With a driven element, a reversing clutch, a shifting lever for the clutch, means operable to swing said lever including a tension spring, and an element to Which said spring is directly attached geared directly tothe driven element and operable to change the direction of pull of said spring.

8. An automatic reversing mechanism comprising, in combination With an element to be driven, a rotatable element having a continually operating gearing connection With said driven element, a reversing clutch, spring means acting directly between said rotatable element and said clutch to shift the latter in the rotation of said element, and cooperating devices on said lever and rotatable element for controlling the movement of the lever.

9. An automatic reversing mechanism comprising, in combination with a driven element, a reversing clutch, a reciprocating member actuated in continual operation by said driven element, and means operable to periodically reverse said clutch, said means including a spring directly attached to said member and operatively connected to said clutch.

In testimony whereof, I have hereunto set my hand.

EDWARD E. BERTHOLD. 

